Spin-density-functional theory of circular and elliptical quantum dots
Spin-density-functional theory of circular and elliptical quantum dots
Using spin-density-functional theory, we study the electronic states of a two-dimensional parabolic quantum dot with up to $N=58$ electrons. We observe a shell structure for the filling of the dot with electrons. Hund's rule determines the spin configuration of the ground state, but only up to 22 electrons. At specific …